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| Orbit Diagram
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| Note:
Make sure you have Java enabled on your browser to see the applet.
This applet is provided as a 3D orbit visualization tool.
The applet was implemented using 2-body methods,
and hence should not be used for determining accurate long-term trajectories
(over several years or decades) or planetary encounter circumstances.
For accurate long-term ephemerides, please instead use our Horizons system. |
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Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.
Orbit Viewer applet originally written and kindly provided by
Osamu Ajiki (AstroArts),
and further modified by
Ron Baalke (JPL).
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Orbital Elements at Epoch 2454800.5 (2008-Nov-30.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .8456094855194346 | 0.00088491 | |
| a | 494.0211845855549 | 2.7332 | AU |
| q | 76.27218485246219 | 0.024533 | AU |
| i | 11.92724009033514 | 0.00016347 | deg |
| node | 144.2783974637729 | 0.0072596 | deg |
| peri | 311.2992546776749 | 0.035069 | deg |
| M | 357.7960020069198 | 0.018073 | deg |
| tp | 2479354.682525945030
(2076-Feb-21.18252595) | 8.3323 | JED |
| period | 4010668.674424062
10980.61 | 33284
91.13 | d
yr |
| n | 8.976059336332402E-5 | 7.4491e-07 | deg/d |
| Q | 911.7701843186476 | 5.0444 | AU |
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| | Orbit Determination Parameters
Additional Information
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[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
1.5629 |
mag |
.36099 |
13 |
autocmod 2.4 |
| rotation period |
rot_per |
10.273 |
h |
n/a |
IAU Lightcurve Data
(A.W. Harris, E-mail Mar. 2006) |
Ambiguous period ("most likely" given) with alternate period: 17.991
Published Reference List:
[Gaudi, B.S., Stanek, K.Z., Hartman, J.D., Holman, M.J., McLeod, B.A.: 2005, Astrophys J. 629, L49-L52.]
[Grundy, W. M., Noll, K. S., Stephens, D. C.: 2005, Icarus 176, 184-191.] |
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| 90377 Sedna | Discovered 2003 Nov. 14 by M. E. Brown, C. A. Trujillo and D. Rabinowitz at Palomar. |
| Sedna is the Inuit goddess of the sea and the mother of all sea creatures. She rewards the people of the land with food from the sea. Without her blessing, hunts fail and the people starve. She is thus one of the most important figures in Inuit legend. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 20040928/MPCPages.arc | Last Updated: 2004-09-28 |
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